A Study of Multi-frequency Polarization Pulse Profiles of Millisecond Pulsars

Abstract

We present high signal-to-noise ratio, multi-frequency polarization pulse profiles for 24 millisecond pulsars that are being observed as part of the Parkes Pulsar Timing Array (PPTA) project. The pulsars are observed in three bands, centred close to 730, 1400 and 3100 MHz, using a dual-band 10 cm/50 cm receiver and the central beam of the 20 cm multibeam receiver. Observations spanning approximately six years have been carefully calibrated and summed to produce high S/N profiles. This allows us to study the individual profile components and in particular how they evolve with frequency. We also identify previously undetected profile features. For many pulsars we show that pulsed emission extends across almost the entire pulse profile. The pulse component widths and component separations follow a complex evolution with frequency; in some cases these parameters increase and in other cases they decrease with increasing frequency. The evolution with frequency of the polarization properties of the profile is also non-trivial. We provide evidence that the pre- and post-cursors generally have higher fractional linear polarization than the main pulse. We have obtained the spectral index and rotation measure for each pulsar by fitting across all three observing bands. For the majority of pulsars, the spectra follow a single power-law and the position angles follow a ${\lambda }^2$ relation, as expected. However, clear deviations are seen for some pulsars. We also present phase-resolved measurements of the spectral index, fractional linear polarization and rotation measure. All these properties are shown to vary systematically over the pulse profile.

arXiv comment41 pages, 28 figures, accepted for publication in MNRAS

References in corpus (59)

• The ATNF Pulsar Catalogue
• The ATNF Pulsar Catalogue
• TEMPO2, a new pulsar timing package. I: Overview
• PSRCHIVE and PSRFITS An Open Approach to Radio Pulsar Data Storage and Analysis
• The Second Fermi Large Area Telescope Catalog of Gamma-ray Pulsars
• The Parkes Pulsar Timing Array Project
• The First Fermi Large Area Telescope Catalog of Gamma-ray Pulsars
• Pulsar rotation measures and the large-scale structure of Galactic magnetic field
• The characteristics of millisecond pulsar emission: I. Spectra, pulse shapes and the beaming fraction
• Two-Pole Caustic Model for High-Energy Lightcurves of Pulsars
• Emission Beam Geometry of Selected Pulsars Derived from Average Pulse Polarization Data
• Pulsar spectra of radio emission
• Measurement and correction of variations in interstellar dispersion in high-precision pulsar timing
• An Atlas For Interpreting Gamma-Ray Pulsar Light Curves
• Gravitational-wave Limits from Pulsar Timing Constrain Supermassive Black Hole Evolution
• PSRCHIVE and PSRFITS: Definition of the Stokes Parameters and Instrumental Basis Conventions
• The characteristics of millisecond pulsar emission: III.From low to high frequencies
• Toward An Empirical Theory of Pulsar Emission. VII. On the Spectral Behavior of Conal Beam Radii and Emission Heights
• An all-sky search for continuous gravitational waves in the Parkes Pulsar Timing Array data set
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• Coherently Dedispersed Polarimetry of Millisecond Pulsars
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• Radio Astronomical Polarimetry and Point-Source Calibration
• An empirical model for the beams of radio pulsars
• Elementary Wideband Timing of Radio Pulsars
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• Polarization observations of 20 millisecond pulsars
• The characteristics of millisecond pulsar emission: II. Polarimetry
• Comparing Geometrical and Delay Radio Emission Heights in Pulsars
• The Parkes Observatory Pulsar Data Archive
• Discovery of millisecond pulsars in radio searches of southern Fermi LAT sources
• Measuring pulse times of arrival from broadband pulsar observations
• Pulsed Gamma Rays from the Original Millisecond and Black Widow Pulsars: a case for Caustic Radio Emission?
• Spectra of Southern Pulsars
• Profile instabilities of the millisecond pulsar PSR J1022+1001
• Pulsar searches of Fermi unassociated sources with the Effelsberg telescope
• Six millisecond pulsars detected by the Fermi Large Area Telescope and the radio/gamma-ray connection of millisecond pulsars
• A Fan Beam Model for Radio Pulsars. I. Observational Evidence
• A Measurement Model for Precision Pulsar Timing
• Long-term Scintillation Observations of Five Pulsars at 1540 MHz
• Pulsars with gigahertz-peaked spectra
• The High Time Resolution Universe Pulsar Survey IV: Discovery and polarimetry of millisecond pulsars
• Wide radio beams from gamma-ray pulsars
• Phase-resolved Faraday rotation in pulsars
• The complex polarization angles of radio pulsars: orthogonal jumps and interstellar scattering
• The nature of pulsar radio emission
• Frequency dependence of pulse width for 150 radio normal pulsars
• The shape of pulsar radio beams
• Timing, polarimetry and physics of the bright, nearby millisecond pulsar PSR J0437-4715 - a single-pulse perspective
• Effects of Quasi-Orthogonal EMission Modes on the Rotation Measures of Pulsars
• Faraday Rotation in Pulsar Magnetosphere
• Polarization observations of nine southern millisecond pulsars
• The High Time Resolution Universe Pulsar Survey - VII: discovery of five millisecond pulsars and the different luminosity properties of binary and isolated recycled pulsars
• Rotation measure variations for 20 millisecond pulsars
• The low-frequency characteristics of PSR J0437-4715 observed with the Murchison Widefield Array
• Toward an Empirical Theory of Pulsar Emission. X. On the Precursor and Postcursor Emission
• Minimum Requirements for Detecting a Stochastic Gravitational Wave Background Using Pulsars
• A Search for Sub-millisecond Pulsations in Unidentified FIRST and NVSS Radio Sources

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